Information on the optional program for prepaying first installment tax bills. This option is most often utilized by taxpayers who travel in the winter months or who elect to prepay the first installment by December 31 for income-tax reasons. NOTE: A law passed by the Illinois Legislature in 2009 raised the first installment tax from 50% to 55% of the prior year's total tax.

This exemption program, administered through the Illinois Department of Veterans' Affairs, reduces taxable assessments for those who were disabled as a result of their service in the U.S. Armed Services.

This program is administered by the Cook County Treasurer's Office and the Illinois Department of Revenue. It allows qualifying seniors to defer part or all of the property taxes until ownership of the property is transferred. Applications are available from late January through the March 1 deadline.

This program is administered by the Cook County Treasurer's Office and allows homeowners of all ages to designate a relative or other trusted friend to receive a duplicate notice only in the event there is a tax delinquency.

This exemption program, administered through the Illinois Department of Veterans' Affairs, reduces taxable assessments for those who were disabled as a result of their service in the U.S. Armed Forces.

The Real-Time TPA System (RTS) allows banks, mortgage companies, and title companies to pay on single or multiple Property Index Numbers (PINs) online through an ACH debit and receive an instant, official Cook County Treasurer printable e-receipt. Payments can be made on the current and previous tax year.

This is the form to submit if you would like a relative or other trusted friend to receive a duplicate notice of delinquency in the event you are not in town or otherwise unable to respond to such an important notice.

The due date for the Tax Year 2016 First Installment was Wednesday, March 1, 2017.

In Cook County, the due date for the First Installment property taxes is always the first business day in March. According to Illinois law, the First Installment taxes are 55% of the prior year's total tax (or 55% of the adjusted tax if an assessment certificate of error is certified by the previous November 30).

The due date for the Tax Year 2016 Second Installment was Tuesday, August 1, 2017.

The Second Installment due date may vary. This is because the Second Installment bill relies on the delivery of various sets of data by other state and county agencies. Unlike the First Installment bill, the Second Installment bill reflects the new assessed values, assessment appeals, exemptions, state equalization factor, and taxing-district tax rates.